200404014 玖、發明說明： 【發明所屬之技術領域】 本發明係有關醫療用針裝置，特別是有關在使用後可 安全收納針管的具有誤刺防止用護套之醫療用針裝置。 【先前技術】 以往，於醫療設施中，注射針或穿刺針等的誤刺所造 成之污染、感染均造成問題。特別是由於最近b型肝炎、 C型肝炎、勝（人類免疫不全病毒）等在社會上廣受重視。 故期望有用來積極防範誤刺等偶發事故的手段。 就用來防止此種誤刺的手段而言，已知有將圓筒形護 套設成可相對於注射針滑動的構件。亦即，藉由滑動圓筒 形護套，可成注射針露出狀態以及收納於圓筒形護套内狀 態’於注射針穿刺針使用後廢棄之際，使針管 加以收納。 又去η 、pi太牲网了 ， 个叮A 丁 0_M61號公^ 曰本特開平5_300942號公報或美國專 說明書所記載之注射針裝置。該 " 輸血、體外血液循環等處理之二 、置疋於輸液、 置。附翼注射針裝置，：”：：泛使用的附翼注射針弟 耵对裒置，係於可滑動的圓筒 安裝有翼’翼與護套一起在注射針外側滑動周面 針使止誤刺，可滑動護套，覆蓋注射針前端。崎 二有上述圓筒形護套的注射針裝置，使… 在針官突出護套的既定狀態下限制注射針於：須有 置的機構，特别是在穿刺操作時於瘦套的仇 貝粑保持注射針不被推 入護套内。又 置針之於，π ’有時亦要求於穿刺操作後，在此狀態下留 了使注：針二目對於護套保持注射針於既定位置。就算為 部，若注==置狀態被拔出而將護套固定於穿刺 拔出之虞。飞#於°套内移動，即有注射針會自穿刺部 5-3_2號八^日本特公平6-7861號公報、日本特開平 射針袭置具^ ^國專f第4，17_號說明書之各注 構造。 ’目料€套將注射針料於既定狀態的 之構造之情幵;，在：广曰本特公平6,61號公報所記載 ^ 收納注射針於護套内時，必須在蔣 > 斛 =套之力量之…，抵抗此保持力== 之情;=曰本特開平5·_2號公報所記載之構造 力:不Γ 射針於護套内時，減弱保持注射針的 不過，“確保將注射針保持於護套的力量 2減弱收納注射針於護套内時的力*，這在其構造上有 困難。依據美國專利第4，17M93號說明書所 = ’此種條件是充分的。 秋 <稱le 【發明内容】 發明所欲解決之#;if問颧 不過，美國專利第4，m，993號說明書所載注射针裝 置令，用以保持注射針的構造構成障礙，其變成在 突出護套的使隸態下，注射針㈣於護套旋動困難 造。為了可適當應付種種操作，最好於注射針突出護套的 200404014 使用狀態’注射針可相對於護套旋動。其原因在於例如有 日寸會因穿刺時與穿刺後針管刃面角度不同而旋動注射針。 即使於日本特公平6 — 7861號公報或日本特開平弘3〇〇942 號公報所載構造中，仍很難在注射針突出護套的使用狀態 下使注射針可相對於護套旋動。 上述問題以附翼注射針裝置為例已說明，不過，這也 是不具有翼的注射針裝置的共同問題。 發明之揭示 本發明之目的在於提供一種具有誤刺防止用護套之醫 療用針裝置，以在針管突出護套之狀態下，使針管不能朝 護套内移動，並使針管可於此狀態相對於護套旋動。 經^問題之枯街手押 本發明具有誤刺防止用護套之醫療用針裝置具有以大 致圓筒形護套筒作為本體的誤刺防止用護套、可軸向移動 $插入護套筒内並可於後端部連接輸液管的針管接頭、及 安裝於針官接頭前端部的針管；且護套筒的内腔可收納針 苢a知針言接頭，係於前端部外周面之局部具有高度 超j護套筒内徑而突出的凸部，護套筒，係於其内壁形成 自前端沿軸向延伸至後端附近的導槽，導槽，係於前端部 具有可嵌合針管接頭前端部的凸部的尺寸。針管接頭，在 凸部露出護套筒前端之狀態下可相對於護套筒旋動。於凸 部不與導槽前端對向的旋動位置’藉由凸部與護套筒前端 面之卡合’使針管接頭不能朝護套筒後端部側移動；於凸 部與導槽前端對向的旋動位置，凸部可於導槽内滑動。 200404014 部：虞可於針管突出護套突出之狀態，藉由凸 ，二:之卡合，保持針管不朝護套内移動。又 、 〜、可使針管相對於護套旋動。 *上述構造中，較佳地，該護套筒，係具有 端而形成的卡合孔，導槽，係距離護套芮内辟 定忐於尨#加± 更嘗两内壁面的深度設 疋成於後鳊錢凸部的高度小 而與卡合孔+入^ 係了於導槽内滑動 卞口孔卡合。错此，可在收納針管 下將針管確實歸於護套筒。 ㈣内的狀怨 該=部’係設於針管接頭在圓周方向之不對應針管之 内移：之=面側之位置。藉此，可在保持針管不朝護套 “：，將針管設定於便於穿刺操作之狀態。結 可防止針官於穿刺狀態縮進護套内的意外狀況發生。 又，該凸部亦可設於針管接頭在圓周方向之對應針管 之刀面側的位置。於此情形，使凸部卡合於導槽，使針管 不能相對於護套旋動’在刀面朝上時，凸部不 刺部位。因此，可確實獲得適合穿刺的狀態。θ-於 又’較佳地，進一步具備自護套筒側壁伸出的具有可 撓性的卡止片、及對應卡止片的位讯 :且卡止片具有向侧方突出的突起，：卡貫通孔 ,.. % 在卞止片繞在護套筒 :動大：插入貫通孔’而限制針管接頭於護套 =動。猎此’可將針管接頭以所希望之狀態保持於護套 ，，較佳地，係具有卡止片保持機構，以保持卡止片 繞在護套筒上的狀態。 、 200404014 該誤刺防止用護套，係進一步具備結合於護套筒前端 側的一對翼部構成附翼護套。 較佳地，該各翼部，係具有突出翼面而形成的翼突起 ，護套筒，係具有形成於側部圓筒壁的貫通孔，可供各翼 大起插入。將兩翼部沿護套筒側面疊合，可透過貫通孔將 各翼突起插人護套筒⑽’藉此，各翼突起阻止針管接頭 於護套筒内作軸向移動’在針管突出護套筒前端既定長度 之狀態下，針管接頭被保持於護套筒。 【實施方式】 登jj之最佳竇施艰能 實施形熊1 圖1是本發明實施形態i的醫療用針裝置的俯視圖， 圖2是自® i左侧所見的側視圖。圖3a是顯示圖】的A_ A剖面形狀的剖面圖。圖3B是顯示自圖3a的狀態進行收 納動作後的狀態的剖面圖。 疋t官，固疋於樹脂製針管接頭2的前端部。軟管， 連接於針管接頭2的後端部。4是護套，以樹脂製的具有 ，致圓筒形狀的護套筒為本體。針管接頭2插入護套 筒4a的内腔’具有可使前端部及後端部突出護套筒々a的 長度°又’針管接帛2的外徑大小較成，相對於護套筒 4a的内壁所形成之間隙足以作相對於護套筒& 軸向移動。 钱久 露出護套筒 部形成凸部11。 4a前端料管接頭2前料，在外周面局 凸部11自針管接頭2外表面起算的高度 200404014 如圖2所示設定為超過護套筒4a的内徑，俾凸部i丄突出 如圖1所不，於護套筒4a外表面，自前端沿轴向伸延至 後端附近形成脊狀部12。於脊狀部12的内壁，自護套筒 2前端沿軸向延伸至後端附近形成導槽12&。導槽於 刖端部具有凸部1 i可進入的尺寸。鄰接導槽⑵後端形成 貫通護套筒4a的管壁的卡合孔13。卡合孔13具有凸部^ 可嵌合的尺寸。且，由於形成導槽12a，故未必要設置脊 狀部12。亦即，在護套筒4a具有充分厚度情形下，可直 接於護套筒4a内壁形成導槽12a。 由圖3A可知，凸部11可自導槽12a前端進入，於導 槽12a内滑動。更且，如圖3B所示，凸部^可於通過導 槽12a後，與卡合孔13卡合。於此狀態，針管丨前端收納 於護套筒4a的内腔内。 又，導槽11a於護套筒4a内壁面下的深度朝後端漸淺 倾斜’於後端凸部1 1的高度小。因此，凸部1 1在導槽 a内α動時’隨著其接近後端，成為凸部11上面強力抵 接於導槽12a底面的狀態。因此，凸部η在經過導槽12& 後端時藉由彈性變形朝高度方向壓縮變形，藉由與卡合孔 13卡合，釋放緊壓力量，恢復高度。於此狀態，藉由凸部 U前端面與脊狀部12後端面抵接，使凸部n不能朝前端 側移動，亦即不能反向後退。又，亦藉由凸部u的後端 面與卡合孔13的後端面抵接，阻止凸部丨丨朝後端側移動 ’藉由凸部11與卡合孔13卡合，獲得將針管接頭2鎖在 屢套筒4a的功能。結果，保持針管1收納於護套筒内 11 200404014 的狀態，獲得防範誤刺之狀態。導槽12a的傾斜可在導槽 12a的全長設置，亦可僅設於後部。 ㈢ 由以上構造可知，於圖！所示凸部u露出護套筒仏 前端之狀態，針管接頭2可相對於護套筒钧旋動❶如圖 示，凸冑U可成為面朝護套筒4a的側部之狀態，圖 4B疋以剖面顯示圖4A的狀態的圖面。藉由針管接頭2 :對於護套筒4a旋動，可自由調整針管丨的刀面Η相對 於濩套的旋動位置，可應付穿刺後的種種操作。 又’於圖4A的狀態’凸部u並不與導槽⑴前端對 二。於此旋動位置，藉由凸部u的後端面與護套筒 :二卡合’阻止針管接頭2朝護套筒乜後端側移動。因 ’藉由例如於穿刺操作之際如此調整凸冑u的移動位 狀態可保持針管i突出護套筒4a ’不被推入護套筒心的 位置如針管1突出護套筒43前端既定長度的使用 有斜放〗从味” f套商鈍刖知面4a的卡合，將安裝 B的針管接頭2的位置限制於古蒦套汽 軟管3端面抵接於護套筒4a後端„“内。又’當 -步朝1峑^ ㈣牦後…即阻止針管接頭2進 朝4套疴4a的前端移動。藓 俾其不合突㈣“ 藉此限制針管1的位置， 管接頭；= 定長度以上。結果，獲得保持針 释碩2於使用位置的功能。 於使用後廢棄醫療用針裝置 位置與導槽12a—致，使針=際#由凸部u的旋動 後端側，如圖3B所-接碩2容易移動至護套筒4a 如圖3β^，可保持於此位置。 12 200404014 針管接頭2在圓財⑼㈣u 的位置關係依用途設定。例如，於圖4A、中/刀面1a 成處於針管接頭2的圓周方向中 ’凸部11設定 。的角度。藉由如此設定凸部u處於：；丄的刀…。 面側的位置，可設定在保持針管i不朝護套筒'刀面側及背 狀態下，針管i處於穿刺操作之狀況，。^内部移動 亦有如圖5所示，將凸部u設在對應 次者 當的情形。於此情形，卡合凸部u a的位置很適 不能相對於護套筒4a旋動 、θ 2a，使針管1 於刀面la朝上之際， 不會抵接於穿刺部位。因此， 、凸# 。 磾實獲侍適於穿刺的狀態 且，上述實施形態固然例示凸部"及 個的情形，不過，亦可冑！個 各為- U的組合。 次個凸部11與2個導槽 =述基本構造外’亦可如圖6A所示， 6A止針管接頭2於護套筒4a的保持機構。圖6B圖示圖 片的二'I面中的護套筒化。14是構成保持機構的卡止 厂’、自4㈣4a的側壁伸出’具有可挽性。如圖沾所 下’卡止片14呈大致圓孤狀’其形成有突起…及握 ^部於卡止片14前端部形成卡合孔W。於護套筒 ^起之=卡止片14的部位的相反侧的側壁形成有固定用 兹參考圖7C，就卡止片14之功能加以說明。 13 200404014 :7A顯示自®6A的狀態，針管接頭2縮 =許的狀態。圖7B顯示第7“c_c剖面。 ： Μ的D_D剖面的護套筒4a。雖然僅顯 ㈣圖 於針管接頭2外表面形成有環狀槽2a。於 不過所 示狀態中’環狀槽2a的位置與卡合孔13的位置一致。 如這些圖所示，卡止片14可藉其可換 4…藉由將卡止片14繞在護套筒 卡合孔13向護套筒4a内腔突出。藉此，突起14a ^前^ ::m卡合，獲得卡止針管接頭2於護套… 持針管接頭。 料表面，亦可藉摩擦力保 由yc可知’於上述狀態，卡止片14前端部的卡合 固定用突起15卡合。藉此，卡止片U保持繞在 4套绮4a上之狀態。 具備以上保持機構的理由如下。亦即，於圖Μ的狀 態，凸部U的旋動位置與導槽12a —致，可使針管接頭2 在護套筒4a的後端側移動。有時欲保持針管】於此種角度 ，因而’為了於此狀態，卡止針管接頭2於護套筒乜，使 針管1不會縮進護套筒㈣，而設置保持機構。又，有時 亦欲在圖7A所示狀態下，卡止針管接頭2於護套筒4ae 其原因在於，於此狀態，由於凸部"進入導槽⑶内，故 可限制針管接頭2及針管1的旋動。 且’為了將卡止片14的突起14a卡合於針管接頭2， 14 200404014 並不限於使用上述卡合孔1 3的構造。亦即，可作成卡止 片14的位置與卡合孔13不同，另外設置供突起l4a向護 套筒4a内突出的貫通孔的構造。 實施形態2200404014 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a medical needle device, and more particularly to a medical needle device with a stab prevention sheath that can safely store a needle tube after use. [Prior art] In the past, in medical facilities, contamination and infection caused by the wrong puncture of injection needles or puncture needles have caused problems. Especially because of the recent hepatitis B, hepatitis C, Sheng (Human Immunodeficiency Virus), etc., have been widely valued in society. Therefore, it is expected to have a means to actively prevent accidents such as accidental stabbing. As a means for preventing such an accidental stab, a member is known in which a cylindrical sheath is provided so as to be slidable with respect to an injection needle. In other words, by sliding the cylindrical sheath, the needle can be exposed and stored in the cylindrical sheath 'when the needle puncture needle is discarded after use, and the needle cannula can be stored. Going to η and pi again, it is Ding A Ding No. 0_M61. It is the injection needle device described in Japanese Patent Application Laid-Open No. 5_300942 or the US specification. The " transfusion, extracorporeal blood circulation, and other treatments are placed in the infusion and placed. Winged needle device: ":: The widely used Winged needle is opposite to each other. It is attached to a slidable cylinder with a wing 'wing and the sheath slides the peripheral needle on the outside of the injection needle to stop the error. Barb, slidable sheath, covering the front end of the injection needle. Sakiji has the above-mentioned cylindrical needle injection device, so that ... in the predetermined state of the needle protruding from the sheath, the injection needle is restricted to: a mechanism to be placed, especially It was during the puncture operation that Qiu Beizhen, who was in a thin sleeve, kept the injection needle from being pushed into the sheath. When the needle was placed, π 'was sometimes required to remain in this state after the puncture operation. Note: Needle 2 For the sheath, keep the injection needle in the predetermined position. Even if it is a part, if the injection state is pulled out, the sheath may be fixed to puncture and pulled out. Fly # moves in the sleeve, and the injection needle will automatically The puncture part No. 5-3_2 ^ Japanese Patent Fair No. 6-7861, Japanese Patent Laid-open Needle Assault Device ^ ^ National Patent f No. 4, 17_ description of each injection structure. The structure of the structure is expected to be in a given state; in: Guang Yue Ben Special Fair No. 6,61 ^ When the injection needle is in the sheath, it must be in the position of Jiang > Dendrobium = the power of the sleeve ... to resist this holding force == ;; = The structural force described in Japanese Patent Publication No. 5-2: No While in the sheath, the holding needle is weakened. "Ensure the force 2 holding the needle in the sheath 2 weakens the force when storing the needle in the sheath *, which is difficult in its structure. According to the specification of U.S. Patent No. 4,17M93 = 'This condition is sufficient. [Abstract] [Abstract] What the invention wants to solve #; if ask, however, the injection needle device order contained in US Pat. No. 4, m, 993 specification is used to maintain the structure of the injection needle and constitutes an obstacle, which becomes In the state of protruding the sheath, it is difficult for the injection needle to rotate on the sheath. In order to be able to cope with various operations properly, it is best to use the state that the injection needle protrudes from the sheath 200404014. The injection needle can rotate relative to the sheath. The reason is that, for example, the needle may be rotated due to the difference in the angle of the blade edge surface between the puncture and the puncture. Even in the structures described in Japanese Unexamined Patent Publication No. 6-7861 or Japanese Unexamined Patent Publication No. 300942, it is still difficult to rotate the injection needle with respect to the sheath while the injection needle is protruding from the sheath. The above problem has been described using the winged injection needle device as an example, but this is also a common problem with the wingless needle device. DISCLOSURE OF THE INVENTION The object of the present invention is to provide a medical needle device having a sheath for preventing accidental puncture, so that the needle tube cannot move toward the inside of the sheath when the needle tube protrudes from the sheath, and the needle tube can be opposed in this state. Rotate on the sheath. The present invention provides a medical needle device having a sheath for preventing stabbing, and has a sheath for preventing stabbing with a substantially cylindrical protective sleeve as a body, which can be moved axially. A needle tube connector that can be connected to an infusion tube at the rear end and a needle tube that is installed at the front end of the needle official connector; and the inner cavity of the protective sleeve can accommodate the needle connector, which is a part of the outer peripheral surface of the front end. A protruding portion having a height exceeding the inner diameter of the protective sleeve. The protective sleeve is attached to the inner wall to form a guide groove extending axially from the front end to the vicinity of the rear end. The guide groove is attached to the front end and has a fittable needle tube. The size of the convex part of the front end of the joint. The needle tube connector can be rotated relative to the protective sleeve with the convex portion exposed at the front end of the protective sleeve. At the rotation position where the convex portion is not opposed to the front end of the guide groove, 'the engagement of the convex portion and the front end surface of the protective sleeve prevents the needle tube connector from moving toward the rear end portion of the protective sleeve; In the opposite rotation position, the convex part can slide in the guide groove. 200404014: Yu Ke can keep the needle tube from moving towards the inside of the sheath by the convex, two: in the state where the needle tube is protruding. In addition, the needle can be rotated relative to the sheath. * In the above structure, preferably, the protective sleeve is provided with an engaging hole and a guide groove formed at the end, and is set at a distance of 尨 # 加 ± from the sheath. Moreover, the depth of the two inner wall surfaces is set. The height of the convex part formed on the back of the coin is small, and it is engaged with the engaging hole + into the sliding groove in the guide groove. Wrong, the needle tube can be surely returned to the protective sleeve under the storage of the needle tube. The state of resentment inside the 该 This = section is set at the position of the needle tube connector in the circumferential direction that does not correspond to the internal movement of the needle tube: where = = the side of the surface. In this way, the needle cannula can be kept in a state that is convenient for the puncture operation while keeping the needle cannula: The knot can prevent the needle from retracting into the sheath in the puncture state and prevent the accident. The convex portion can also be provided. The position of the needle tube connector in the circumferential direction corresponding to the blade side of the needle tube. In this case, the convex portion is engaged with the guide groove so that the needle tube cannot rotate relative to the sheath. When the blade surface is upward, the convex portion does not puncture Therefore, a state suitable for puncture can be surely obtained. Θ-Yu 'preferably further includes a flexible locking piece protruding from the side wall of the protective sleeve, and a bit corresponding to the locking piece: and The locking piece has a protrusion protruding sideways: a card through-hole, ..% is wrapped around the sleeve on the protective sleeve: moving large: insert the through-hole 'and restrict the needle tube connector to the sheath = moving. Hunting this can The needle tube connector is held in the sheath in a desired state, and preferably has a locking piece holding mechanism to maintain the state where the locking piece is wound around the protective sleeve. 200404014 The stab prevention sheath, The system further includes a pair of wing portions coupled to the front end side of the protective sleeve. Wing sheath. Preferably, each wing part is provided with a wing protrusion protruding from the airfoil surface, and the protective sleeve is provided with a through hole formed in the side cylindrical wall for each wing to be inserted. The two wings are superimposed along the side of the protective sleeve, and the wing protrusions can be inserted into the protective sleeve through the through holes. Thus, each wing protrusion prevents the needle tube connector from moving axially in the protective sleeve. The protective sleeve protrudes from the needle tube. In a state of a predetermined length of the front end, the needle cannula connector is held in the protective sleeve. [Embodiment] The best sinus stencil can be shaped 1 according to the embodiment of the present invention. Fig. 1 is a plan view of a medical needle device according to an embodiment i of the present invention. 2 is a side view seen from the left side of the ® i. Fig. 3a is a cross-sectional view showing the cross-sectional shape of AA in Fig. 3B. Fig. 3B is a cross-sectional view showing a state after the storage operation is performed from the state of Fig. 3a. It is fixed to the front end of the resin needle connector 2. The hose is connected to the rear end of the needle connector 2. The 4 is a sheath made of a resin-made, cylindrical protective sleeve. The needle connector 2 The inner cavity of the protective sleeve 4a is inserted so that the front end portion and the rear end portion can protrude The length of the sleeve 々a is relatively large, and the outer diameter of the needle tube connector 壁 2 is relatively large, and the gap formed with respect to the inner wall of the protective sleeve 4a is sufficient for axial movement relative to the protective sleeve. Qian Jiu exposed the sheath The tube part forms a convex part 11. The height of the front convex tube joint 2 from the front end of the 4a, and the height of the local convex part 11 from the outer surface of the needle tube joint 2 on the outer peripheral surface 200404014 is set to exceed the inner diameter of the protective sleeve 4a as shown in FIG. As shown in FIG. 1, the convex portion i 丄 protrudes from the outer surface of the protective sleeve 4 a in the axial direction from the front end to the vicinity of the rear end to form a ridge 12. The inner wall of the ridge 12 is formed from the front edge of the protective sleeve 2. The guide groove 12 & is formed by extending axially to the vicinity of the rear end. The guide groove has a dimension accessible by the convex portion 1 i at the end of the guide groove. An engagement hole 13 is formed adjacent to the rear end of the guide groove 贯通 and penetrates the tube wall of the protective sleeve 4a. The engaging hole 13 has a size in which the convex portion ^ can be fitted. Moreover, since the guide groove 12a is formed, it is not necessary to provide the ridge portion 12. That is, when the protective sleeve 4a has a sufficient thickness, the guide groove 12a can be formed directly on the inner wall of the protective sleeve 4a. As can be seen from Fig. 3A, the convex portion 11 can enter from the front end of the guide groove 12a and slide inside the guide groove 12a. Moreover, as shown in FIG. 3B, the convex portion ^ can be engaged with the engaging hole 13 after passing through the guide groove 12a. In this state, the front end of the needle tube 丨 is housed in the inner cavity of the protective sleeve 4a. Further, the depth of the guide groove 11a below the inner wall surface of the protective sleeve 4a is gradually shallower toward the rear end and is smaller than the height of the rear end projection 11. Therefore, when the convex portion 11 moves within the guide groove a ', as it approaches the rear end, the upper surface of the convex portion 11 strongly contacts the bottom surface of the guide groove 12a. Therefore, when the convex portion η passes through the rear end of the guide groove 12 &, it is compressed and deformed in the height direction by elastic deformation, and is engaged with the engaging hole 13 to release the tight pressure and restore the height. In this state, the front end surface of the convex portion U is in contact with the rear end surface of the ridge portion 12, so that the convex portion n cannot be moved toward the front end side, that is, the backward direction cannot be reversed. In addition, the rear end surface of the convex portion u is in contact with the rear end surface of the engaging hole 13 to prevent the convex portion 丨 丨 from moving toward the rear end side. The convex portion 11 is engaged with the engaging hole 13 to obtain a needle tube connector. 2 Lock in the function of the repeated sleeve 4a. As a result, the state in which the needle tube 1 is accommodated in the protective sleeve 11 200404014 is maintained, and a state of preventing stabbing is obtained. The inclination of the guide groove 12a may be provided over the entire length of the guide groove 12a or may be provided only at the rear. ㈢ From the above structure, we can see in the picture! The convex part u is exposed in the state of the front end of the protective sleeve. The needle tube connector 2 can be rotated relative to the protective sleeve. As shown in the figure, the convex part U can be a state facing the side of the protective sleeve 4a, FIG. 4B疋 A drawing showing the state of FIG. 4A in a cross section. By the needle tube connector 2: For the rotation of the protective sleeve 4a, the rotation position of the blade surface of the needle tube 丨 relative to the sleeve can be freely adjusted to cope with various operations after puncturing. Also in the state of Fig. 4A, the convex portion u is not opposed to the front end of the guide groove ⑴. In this rotational position, the rear end surface of the convex portion u and the protective sleeve: two engagements' prevent the needle tube connector 2 from moving toward the rear end side of the protective sleeve 乜. Because, for example, the needle tube i can be pushed out of the protective sleeve 4a by adjusting the movement state of the projection 胄 such as during puncture operation, such that the needle tube 1 protrudes from the predetermined length of the front end of the protective sleeve 43 The use of the oblique placement of the "smell" f suitor's blunt knowing surface 4a, restricts the position of the needle tube connector 2 where B is installed to the end of the ancient sleeve steam hose 3 abutting the rear end of the protective sleeve 4a. "Inside. And again, when-step toward 1 峑 ^ ㈣ 牦… ... that prevents the needle tube connector 2 from moving toward the front end of the 4 sets of 4a. The moss does not fit into the projection." This restricts the position of the needle tube 1, the tube connector; = More than fixed length. As a result, a function of holding the needle release 2 in the use position is obtained. After use, the position of the discarded medical needle device and the guide groove 12a are the same, so that the needle = Ji # is rotated by the rear end side of the convex portion u, as shown in FIG. 3B-the connection 2 is easy to move to the protective sleeve 4a as shown in FIG. 3β ^, Can stay in this position. 12 200404014 The positional relationship of the needle tube connector 2 in Yuancaiyuu is set according to the application. For example, in FIG. 4A, the middle / blade face 1a is positioned in the circumferential direction of the needle tube joint 2 and the convex portion 11 is set. Angle. By setting the convex portion u to be in this way :; The position on the face side can be set in a state where the needle tube i is in a puncture operation while the needle tube i is not facing the blade side and back of the protective sleeve. ^ Internal movement As shown in Fig. 5, the convex part u is set to correspond to the second case. In this case, the position of the engaging convex portion u a is very suitable, and cannot be rotated relative to the protective sleeve 4a, θ 2a, so that the needle tube 1 does not abut the puncture site when the blade surface la faces upward. Therefore,, convex #. The actual state is suitable for puncture. Moreover, although the above-mentioned embodiment exemplifies the case of the convex portion ", it is also possible! Each is a combination of -U. The next convex portion 11 and the two guide grooves = outside the basic structure described above. As shown in FIG. 6A, the holding mechanism of the 6A needle stopper tube joint 2 on the protective sleeve 4a. Fig. 6B illustrates sheathing in the two'I plane of the picture. Reference numeral 14 denotes a latching plant 'which constitutes a holding mechanism, and is projectable from a side wall of 4㈣4a. As shown in the figure below, the 'locking piece 14 is substantially circularly lonely', which is formed with protrusions ... and a grip portion forms an engaging hole W at the front end portion of the locking piece 14. Fixing is formed on the side wall on the side opposite to the position of the protective sleeve = the locking piece 14. The function of the locking piece 14 will be described with reference to FIG. 7C. 13 200404014: 7A shows the state from ®6A, and the needle tube connector 2 is retracted = allowed. Fig. 7B shows the 7 "c_c cross section .: The protective sleeve 4a of the D_D cross section of M. Although only the figure shows an annular groove 2a formed on the outer surface of the needle tube connector 2. In the state not shown, the 'annular groove 2a' The position is consistent with the position of the engaging hole 13. As shown in these figures, the locking piece 14 can be replaced by 4 ... by winding the locking piece 14 around the protective sleeve engaging hole 13 toward the inner cavity of the protective sleeve 4a Projection. With this, the protrusion 14a ^ front ^ :: m is engaged to obtain the locking needle connector 2 on the sheath ... Holding the needle connector. The material surface can also be known from yc by the friction force 'in the above state, the locking piece The engaging and fixing protrusions 15 of the front end portion 14 are engaged. As a result, the locking piece U is kept in a state of being wound on four sets of 4a. The reason for having the above retaining mechanism is as follows. That is, in the state of FIG. The rotation position of U is the same as the guide groove 12a, so that the needle tube connector 2 can be moved on the rear side of the protective sleeve 4a. Sometimes it is necessary to maintain the needle tube] at this angle, so 'for this state, lock the needle tube connector 2 on the protective sleeve 乜, so that the needle tube 1 is not retracted into the protective sleeve ㈣, and a holding mechanism is provided. In addition, sometimes it is desired to be in the state shown in FIG. 7A The reason for locking the needle tube connector 2 to the protective sleeve 4ae is that, in this state, since the convex portion “enters into the guide groove ⑶, the rotation of the needle tube connector 2 and the needle tube 1 can be restricted. The protrusion 14a of 14 is engaged with the needle tube connector 2, 14 200404014, and is not limited to the structure using the above-mentioned engagement hole 13. That is, the position of the locking piece 14 can be made different from that of the engagement hole 13, and the protrusion 14a is also provided. Structure of a through hole protruding in the protective sleeve 4a.
圖8是本發明實施形態2的醫療用針裝置的俯視圖， 圖9是自圖8左側所見的側視圖。圖1〇是顯示該裝置的 俯視形狀的剖面圖。本實施形態係有關附加左右翼部於實 施形態1的護套筒4a，形成附翼護套的構造，護套筒及針 管接頭的基本構造與實施形態丨相同。因此，以相同元件 符唬標不與實施形態1的元件相同的元件，加以說明。 丄疋針官，固定於樹脂製針管接頭2的前端部。軟管 連接於針管接頭2的後端部。24是附翼護套，由樹脂製自 2有大致圓筒形狀的護套筒24a及左右翼部5、6構成。i :接頭2插入護套筒24a的内腔，具有可突出護套筒^ 則端部及後端部的長度。又，針管接頭2的外徑大小設另FIG. 8 is a plan view of a medical needle device according to a second embodiment of the present invention, and FIG. 9 is a side view seen from the left side of FIG. 8. Fig. 10 is a cross-sectional view showing the plan shape of the device. This embodiment relates to the structure in which a winged sheath is formed by adding left and right wings to the protective sleeve 4a of the first embodiment. The basic structure of the protective sleeve and the needle joint is the same as that of the embodiment. Therefore, components that are not the same as those in the first embodiment will be marked with the same components and will be described. The needle officer is fixed to the front end portion of the needle tube connector 2 made of resin. The hose is connected to the rear end portion of the needle tube connector 2. Reference numeral 24 denotes a winged sheath, which is made of a protective sleeve 24a made of resin and having a substantially cylindrical shape, and left and right wing portions 5, 6. i: The connector 2 is inserted into the inner cavity of the protective sleeve 24a and has a length that can protrude the end portion and the rear end portion of the protective sleeve. The outer diameter of the needle tube connector 2 is set separately.
:護護套筒24a的内壁所形成之間隙足以容易二 ;4套缚24a作旋動及軸向移動。 6設於護套筒24a的前端部 么石異邵 突出側的端部。翼邱5、6纴人 力丨針1 側部，且古、 結合於各護套筒24a外周面的 翼邛5 ' :5蒦套筒A的軸為中心相互對稱的形狀。 起；、8、的：：部領域分別形成翼突起7、8。於對應翼 起？的護套筒24a的左右側部壁形成貫通孔9、1〇。 局部：成凸T :4a前端的針管接頭2前端部，在外周 D U。於護套筒24a的外表面形成脊狀部12 15 200404014 於脊狀部12的内劈带+ j & 等的構、”你 ^成導槽12a。凸部η以及導槽12a 專的構每和作用實質上與實施形態】相同。 且，凸部11設在針管接頭2在圓 1的刃面la伽另#咎工/ 心个対應針官 u面側的位置。因此，防止在 朝向垂直於翼部5、6时向狀許，凸部u 對向。由料常在穿刺之際，刀面la成朝向垂直於^5 6的狀悲，因此’依據此構造，可避免、 管1被推入護套筒24a。 別之際針 圖11A及11B顯示設於翼部5、6的翼突起Μ 用該圖疋圖8的E-E剖面圖。使用翼部5、 於穿刺之際進行。 _作疋 自圖UA所示狀態，將翼部5、6沿護套筒…的外 表面向上舉起’如冑11B所示’將翼突起7、8插入貫通 孔9、10,貫通護套筒24a的壁部，向内腔突出。結果， 翼突起7、8的前端部抵接於針管接頭2的外表面。°藉此 抵接的緊壓力所產生的摩擦力’針管接頭2,亦即針；丨 保：於附翼護# 24。因此’可在牢固確保針管之狀態下進 行穿刺操作。藉由以手指強力夾住兩翼部5、6，亦可施加 充分緊壓力於翼突起7、8,強力保持針管接頭2。 且，較佳地，護套筒24a外表面的底部形成平坦，俾 穩定配置於患者的皮膚上。又，於圖示中，護套筒％的 内腔雖為圓形，亦可將内腔上側形成為對應針管接頭2外 表面形狀的曲面，並將内腔面的底部形成平括。 產上之可利用性 16 200404014 本發明具有誤刺防止用護套之醫療用針裝置為了 <進 行穿刺操作’在針管突出護套筒之狀態下可保持針管不能 朝護套筒内移動。並且，於此狀態，可使針管相對於護套 旋動。 【圖式簡單說明】 (一）圖式部分 圖1是本發明實施形態1的醫療用針裝置的俯視圖。 圖2是自圖1左側所見的醫療用針裝置的側視圖。 圖3A是圖1的a-A剖面圖。 圖3B是顯示自圖3A的狀態進行收納動作以後的狀態 的剖面圖。 圖4A是顯示實施形態1的醫療用針裝置的動作的俯 視圖。 圖4B是以剖面顯示圖4A的狀態的圖。 圖5是顯示實施形態1的醫療用針裝置的其他態樣的 剖面圖。 圖6 A是顯示圖1的醫療用針裝置的改良例的俯視圖 〇 圖6B是圖6A的B-B剖面圖。 圖7A是顯示圖6A的醫療用針裝置的動作的俯視圖。 圖7B是圖7A的C-C剖面圖。 圖7C是圖7A的D-D剖面圖。 圖8是本發明實施形態2的附翼之醫療用針裝置的俯 視圖。 17 200404014 圖9是自圖8左側所見的醫療用針裝置的側視圖。 圖10是顯示醫療用針裝置的俯視形狀的剖面圖。 圖11A是圖8的E-E剖面圖。 圖11B是顯示自圖11A的狀態改變以後的動作的剖面 (二）元件代表符號 1 針管 la 刃面 2 針管接頭 2a 環狀槽 3 軟管 4 護套 4a 護套筒 5、6 翼部 7 > 8 翼突起 9、10 貫通孔 11 凸部 12 脊狀部 12a 導槽 13 卡合孔 14 卡止片 14a 突起 14b 握持用肋部 14c 卡合孔: The gap formed by the inner wall of the protective sleeve 24a is enough for easy two; 4 sets of binding 24a for rotation and axial movement. 6 It is provided at the front end of the protective sleeve 24a. Wing Qiu 5, 6 纴 Human force 丨 Needle 1 is a side part, and the wings wing 5 ': 5 结合 which are coupled to the outer peripheral surface of each protective sleeve 24a are symmetrical shapes with the axes of the sleeves A centered. From:, 8, :: The wing protrusions 7 and 8 are formed in the field. From the corresponding wings? The left and right side walls of the protective sleeve 24a are formed with through holes 9, 10. Part: Convex T: 4a The front end of the needle tube connector 2 at the front end, D U on the outer periphery. A ridge 12 is formed on the outer surface of the protective sleeve 24a. 200404014 The structure of the inner split band + j & etc. of the ridge 12 is formed into a guide groove 12a. The convex portion η and the guide groove 12a are specially structured. Each action is substantially the same as that of the embodiment. In addition, the convex portion 11 is provided at the position of the needle tube joint 2 on the cutting surface 1 of the circle 1 and the center of the needle. The direction is perpendicular to the wings 5 and 6, and the protrusions u face each other. When the material is often punctured, the blade surface la is oriented perpendicular to ^ 56, so 'based on this structure, you can avoid, The tube 1 is pushed into the protective sleeve 24a. In addition, Figs. 11A and 11B show wing protrusions M provided on the wing portions 5, 6. This figure is a cross-sectional view taken along the line EE in Fig. 8. When the wing portion 5 is used, puncture is performed. _From the state shown in Figure UA, lift the wings 5 and 6 along the outer surface of the protective sleeve ... as shown in Figure 11B, insert the wing protrusions 7, 8 into the through holes 9, 10, and pass through. The wall portion of the protective sleeve 24a protrudes toward the inner cavity. As a result, the front end portions of the wing protrusions 7 and 8 abut against the outer surface of the needle tube connector 2. The frictional force generated by the tight pressure abutted by this' needle tube connector 2, that is, the needle; 丨 guarantee: in the attached wing guard # 24. Therefore, the puncture operation can be performed with the needle tube firmly secured. By clamping the two wings 5 and 6 with your fingers, you can also apply sufficient tight pressure to The wing protrusions 7, 8 strongly maintain the needle tube connector 2. Also, preferably, the bottom of the outer surface of the protective sleeve 24a is formed flat and stably disposed on the skin of the patient. Also, in the figure, the protective sleeve is Although the inner cavity is circular, the upper side of the inner cavity can also be formed into a curved surface corresponding to the shape of the outer surface of the needle tube connector 2, and the bottom of the inner cavity surface can be flattened. Availability in production 16 200404014 The present invention has a prevention of false puncture The sheathed medical needle device is used for < perforating operation ' in a state where the needle tube protrudes from the protective sleeve, the needle tube cannot be moved into the protective sleeve. In this state, the needle tube can be rotated relative to the protective sleeve. [Brief Description of the Drawings] (I) Schematic Figure 1 is a plan view of a medical needle device according to Embodiment 1 of the present invention. Figure 2 is a side view of the medical needle device seen from the left side of Figure 1. Figure 3A is a diagram AA sectional view of 1. Figure 3B is a 3A is a cross-sectional view of the state after the storage operation is performed. FIG. 4A is a plan view showing the operation of the medical needle device according to the first embodiment. FIG. 4B is a view showing the state of FIG. 4A in a cross-section. 6A is a plan view showing a modified example of the medical needle device of FIG. 1. FIG. 6B is a BB sectional view of FIG. 6A. FIG. 7A is a medical view of FIG. 6A. A top view of the operation of the needle device. Fig. 7B is a CC sectional view of Fig. 7A. Fig. 7C is a DD sectional view of Fig. 7A. Fig. 8 is a plan view of a winged medical needle device according to Embodiment 2 of the present invention. 17 200404014 Fig. 9 is a side view of the medical needle device as seen from the left side of Fig. 8. FIG. 10 is a sectional view showing a plan shape of the medical needle device. Fig. 11A is a sectional view taken along the line E-E in Fig. 8. FIG. 11B is a cross-section showing the operation after the state change in FIG. 11A (II) Symbols of component symbols 1 needle tube la blade surface 2 needle tube connector 2a annular groove 3 hose 4 sheath 4a sheath 5 and 6 wings 7 & gt 8 wing protrusions 9, 10 through holes 11 convex portions 12 ridge portions 12a guide grooves 13 engaging holes 14 locking pieces 14a protrusions 14b holding ribs 14c engaging holes
18 200404014 15 固定用突起 24 附翼護套 24a 護套筒18 200404014 15 Fixing protrusion 24 Wing sheath 24a Sleeve
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